linux-kernel - Re: EFI and multiboot2 devlopment work for Xen

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Message-ID: <52659C34.6010508@gmail.com>
Date:	Mon, 21 Oct 2013 23:27:16 +0200
From:	Vladimir 'φ-coder/phcoder' Serbinenko 
	<phcoder@...il.com>
To:	The development of GNU GRUB <grub-devel@....org>
CC:	Seth Goldberg <seth.goldberg@...cle.com>, keir@....org,
	david.woodhouse@...el.com, stefano.stabellini@...citrix.com,
	linux-kernel@...r.kernel.org, ross.philipson@...rix.com,
	jbeulich@...e.com, boris.ostrovsky@...cle.com,
	xen-devel@...ts.xen.org, richard.l.maliszewski@...el.com,
	ian.campbell@...rix.com
Subject: Re: EFI and multiboot2 devlopment work for Xen

On 21.10.2013 22:53, Seth Goldberg wrote:
> 
> 
> Quoting Daniel Kiper, who wrote the following on Mon, 21 Oct 2013:
> 
>> Hi,
>>
>> During work on multiboot2 protocol support for Xen it was discovered
>> that memory map passed via relevant tag could not represent wide range
>> of memory types available on EFI platforms. Additionally, GRUB2
>> implementation calls ExitBootServices() on them just before jumping
>> into loaded image. In this situation loaded system could not clearly
>> identify reserved memory regions, EFI runtime services regions and
>> others.
> 
>   Yes, that is exactly why we added full support to pass the entire UEFI
> memory map via a new tag.
> 
Can you send this patch? Or provide a link to publically available
source? I think we can accept it with probably just minor changes.


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